Cheap flights from Knoxville to Lisbon from $237
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Lisbon departing on 7/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Knoxville to Lisbon
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How to get the cheapest flight ticket from Knoxville to Lisbon
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Knoxville and Lisbon?
What is the cheapest month to fly to Lisbon?
In general, January is the cheapest month to fly from Knoxville to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $629. If you are unable to visit Lisbon during the month of January, then departing from Knoxville during the month February is also very affordable. Most momondo users find prices during this month for around $638.
What is the cheapest day to depart on your flight to Lisbon?
Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $819. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Knoxville to Lisbon for around $1,534.
What is the cheapest time of day to depart on your flight to Lisbon?
The cheapest time of day to fly to Lisbon is in the morning when flights can be purchased for as low as $745. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,134 on average. Flights to Lisbon from Knoxville in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Lisbon?
You are more likely to see cheaper flights to Lisbon from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $970 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Knoxville for as low as $619 on momondo.
What is the cheapest airline that flies from Knoxville McGhee Tyson to Lisbon Humberto Delgado?
United Airlines and Air Canada are the most popular carriers operating from Knoxville McGhee Tyson to Lisbon Humberto Delgado
What airlines fly to Lisbon?
American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to Lisbon from Knoxville according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 4 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.
When to book flights from Knoxville to Lisbon
Cheap Knoxville to Lisbon (TYS to LIS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to Lisbon
How far is Knoxville McGhee Tyson to Lisbon Humberto Delgado by plane?
Lisbon Humberto Delgado is 3990.0 mi away from Knoxville McGhee Tyson. 9h 38m is a normal flight duration for this route.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport?
As of June 2025, there are 3 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to Lisbon?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to Lisbon is United Airlines (35% of total bookings). The next most popular airlines are British Airways (33%) and American Airlines (32%).
Best airlines flying from Knoxville to Lisbon
Compare and see reviews for airlines that fly from Knoxville to Lisbon with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $589 | Free Cancellation | Rating 6.6 7,081 reviews | |||
| PriceFrom $602 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $603 | Free Cancellation | Rating 7.4 8,852 reviews |
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Knoxville to Lisbon?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to Lisbon. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Knoxville to Lisbon with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Knoxville to Lisbon flights to just show those with flexible booking policies.
How can momondo help me find flights from Knoxville to Lisbon?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from Knoxville.
I’m not ready to book a flight from Knoxville to Lisbon right now. Can momondo alert me if prices change?
Price alerts on flights to Lisbon from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.